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27 Cards in this Set
- Front
- Back
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Technology
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tools, materials, and processes that help solve human problems
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Digital Electronics device
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device that stores and processes bits electronically...with the ability to represent, process, transfer, store data as 1's and 0's
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Byte (B)
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a group of eight bits
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File
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a named collection of instructions of data stored
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Data
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items stored on a digital electronics device
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Bit(b)
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short for binary digit, represents data that can be set to one of two states, on or off.
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Digitization
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transforming stuff into 1's and 0's
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Information
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data organized in a manner it has value beyonnd value of data itself.
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Microprocessor
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also a chip or processor...combines electronic components on a single integrated circuit that processes bits
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Secondary Storage
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store data without need of electricity, take them where you go e.g hard drives, CD, USB flash drives e.t.c
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Storage device
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refers to device itself e.g drive or circuitry
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Access time
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time it takes to request data to be fulfilled by the device
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Magnetic Storage
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use the magnetic properties of iron oxide particles
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Formatting
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the coating of surface of magnetic storage device with a layer of particles organized into addressable regions.
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Microdrives
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tiny hard drives that can store GB of data on a disk e.g LifeDrive from PalmOne with 4 GB hard drive
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Microdrives
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tiny hard drives that can store GB of data on a disk e.g LifeDrive from PalmOne with 4 GB hard drive
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Magnetic tape
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storage medium for businesses to back up large quantities of data.e.g of sequential access
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SAN
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Storage area network links many storage devices on a network
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SAN
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Storage area network links many storage devices on a network
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RAID
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Redundant array of independent disks (second system of disks to maintain backup copy)
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RAID
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Redundant array of independent disks (second system of disks to maintain backup copy)
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Optical storage
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optical laser used to burn pits onn a reflecive disk surface e.g SDs, DVD's
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Optical storage
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optical laser used to burn pits onn a reflecive disk surface e.g SDs, DVD's
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Optical vs. Magnetic
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Optical lasts longer, and higer capacity
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52x32x52 CD-RW & 16X DVD
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Recrdable, RW, Read and read DVD at 16 times original rate
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Flash memory card
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chip non-volatile and keeps memory with no power...also called media cards
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USB flash drives
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Universal Serial Bus no mechanical part uses flash tech to store info
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